Wrapping-machine.



M. O. 8 J. G. REHFUSS.

WRAPPING MACHINE.

APPLICATION FILED MAY 22, 1915.

Patented Mar. 14, 1916.

4 SHEETS-SHEET I.

INVEIVTOR5 WIT/V555:

amgsezfl M. U. K: J. G. REHFUSS.

WRAPPING MACHINE.

APPLICATION FILED MAY 22. I915.

WiT'A ESS:

M. O. & J. G. REHFUSS.

WRAPPING MACHINE.

APPLICATION FILED MAY 22, 1915.

.M. O. & J. G. REHFUSS.

WRAPPING MACHINE. APPLICATION HLED MAY 22, 1915.

a 75 %3, Patented M. 14,1916.

4 SHEETS-SHEET 4.

V/l/f/ $17G grunn 1-9:

W n/mes AVVURIVEX i Vi 10 /5655 sra'rns MARTIN O. REHFUSS AND JOHN GEORGE REHFUSS, OF PHILADELPHIA, PENNSYL- VANIA, ASSIGNORS T0 CURTIS PUBLISHING COMPANY, OF PHILADELPHIA, PENN- SYLVANIA, A CORPORATION OF PENNSYLVANIA. t

WRAPPING-MACHINE.

Patented Mar. 14., 1916.

Application filed May 22, 1915. Serial No. 29,344.

to secure protection for that part of the machine without regard to certain other parts that are described and claimed in sald application. H

The principal object of the present mvention is to provide simple, reliable and eflicient means for feeding paper from a roll to the top of a table, cutting it into proper length, folding it about a pile of books or other objects and holding it in place preparatory to its being secured in any appropriate way.

Another object of the invention is to provide comparatively simple, reliable and eflicient means for actuating the various parts and other objects of the invention are to provide for moving the table while the paper is clamped to the package, for example, to facilitate the operation of securing the paper. p Another object of the invention is to provide for delivering the package to the table and paper thereon and preventing-it from retrograde movement.

Another object of the invention is to properly support the paper and package although a corner of the table is cut away, and another object of the invention is to revent the corner of the paper opposite to that engaged by the paper feed mechanism from improperly curling.

Other objects of the invention will appear from the following description taken in connection with the accompanying drawings, illustrating an embodiment of the invention, and in wh1ch Figure 1, is a top or plan view, partly in section, illustrating wrapping mechanism of Philadelphia and followembodying features of the invention; Fig.

2, is a sectional view taken on the line 2-2' of Fig. 1. Fig. 3, is a side view of Fig. 2. Fig. 4, 1s a transverse sectional view taken on the line 4-4 of Fig. 1. Fig. 5, is a side view of Fig. 4. Fig. 6, is a sectional view taken on the line 6-6 of Fig. 1. Fig. 7, is a sectlonal view taken on the line 7-7 of Fig. 1, and-Fig. 8, is a detail view, partly in sectlon, drawn to an enlarged scale.

In the drawings 1 is a table and" 2 a papa -=1 roll-holder arranged to one side of the table. From the roll 2 paper passes over a guide .roll 3, as indicated by dotted lines in Fig. 6

as indicated by the arrow in that figure, so

that the paper extends over the table 1 and over certain other parts into the position shown by dotted lines in Fig. 1.

4, are scissors arranged between the table 1 and paper roll-holder 2, and their purpose is to cut off the sheet that is to be used for wrapping the package.

5 1s an intermittent paper feed arranged at one edge of the table and provided with paper grippers 6. AS shown the paper feed consists of a sprocket chain, and the paper grlppers are shown in Fig. 8. They comprise bell-crank levers 7 pivoted at 8 and operated upon by a spring pressed plunger 9 that coiiperates with a roller 10, and they are carried by the intermittent feed 5 and are properly spaced. The'plunger and roller operate in such a way that when the bellcrank lever 7 has been turned into either position it will remain in that position and either grip the paper with...-a spring grip or else release it.

11, is a gripper closer adapted to contact with one arm of the gripper 6, Fig. 7, and turn it down onto a bracket 12 carried by the chain 5, so as to cause the gripper to grasp the paper in rear of the scissors and at one edge of the paper. By the intermittent motion of the chain,'the" grippei-"i'vhich has thus taken hold of the paper at one edge, pulls the paper forward until the chain comes to rest with this gripper in line with the gripper release 13 (Fig. 2), which swings the 14, is a wiping arm arranged opposite the gripper release and at the other side of the table. It serves to properly position the corner part of the paper which is not positioned by the gripper. y

15 and 16 are paper folders arranged one at each side of the table and their purpose is to fold the paper around the package after it has been cut off from the roll by the scissors 4 and released by the gripper and adjusted by the wiping arm. I

17, is a presser foot above the table and between the folders, and itspurpose is .to hold the paper after it has been folded around the package so that the paper and package can be secured. For this purpose the table 1 may be moved bodily along with the presser foot toward the left in Fig. 1 and that is what is done in the application for a patent to which reference has been made. To accomplish this the presser foot is operated by a trolley 18 that can run on a rail 19, Fig. 4, operated by cam lever 62 and cam 63, so that when the'table is moved horizontally the trolley runs on the rail and keeps the presser foot up to its work.

20, is a fixed rod that supports the paper and corner of the package which overlies the cut-away corner 21 of the table and thus insures proper operation. The corner of the table is cut away so as to facilitate the tying operation, which is described in the application for a patent above referred to. After the paper is put upon the table, the articles to be wrapped, such as books or the like, are fed forward by the slide 22, whereupon the stop 23 in the form of a fork, Fig. 3 is raised so that it straddles the slide and gets in back of the books. Vhen the slide is retracted this fork prevents the books from following it and is thereafter lowered out of action.

The mechanism for actuating the parts referred to is driven from a power shaft 24 geared as at 25 to a counter-shaft 26, although the counter-shaft 26 drives two short shafts 27 and 28 through the intervention of beveled gearing-29. The sprocket chain is driven from the shaft 27 through the intervention of star wheel gearing '30, Fig. 6, which imparts to it the required intermittent motion. The shaft 28, Fig. 3, is provided with a grooved cam 31 which operates upon a cam lever 32 and so raises and lowers the stop 23 in its slide 33 with a positive motion. The shaft 26 carries a cam 34 which raises and lowers a spring pressed follower 35 that is connected with and operates the scissors, Fig. 7, and the shaft 26 is also provided with a grooved cam 36 that operates upon a cam lever 37 connected with 'rod 11 that closes the gripper 6, Fig 7. The shaft 26 is provided with a pair of cams 39 and 40 which operates slides 41 and 42 connected by a pair of links 43 with arms 44 attached to the folders 15 and 16.

and avoids the use of springs, and weights.

The ends 46 of. the folders 15 and 16 are bent at right angles to the folders themselves and are shown as adjustably connected with the foldersby means of slot-and-setscrew connections 47 (Fig. 4). In this way the folders can be adjusted to packages of different sizes and the permanently inturned ends serve to properly fold the paper. The

shaft 26 is provided with a grooved cam 48 whose follower 49 operates the gripper opener 13 Fig. 2. A cam 50 secured to cam 48 operates 'an arm 51 on the upright shaft 52 against the force of a spring 53, Fig. 2. The upper end of this shaft 52 is provided with a toothed sector 54 which meshes with apinion on the shaft 55, to the upper end of which the wiping arm 14 is attached. 'No mechanism is shown for moving the table 1, but its base 56 can slide on the ways 57. Suitable means for moving the table are described and illustrated in the application for Letters Patent above referred to and this is true of the means for moving the slide 22.

The described mechanisms are so timed in respect to each other that the shafts 24 and 26 revolve continuously and the necessary intermittent motions and dwells are provided by the described cams and star gearing. In operation one of the grippers 6, the one shown at the top in Fig. 1, seizes one edge of the paper before the scissors out it.

This gripper 6 then passes between the open .blades of the scissors and draws the paper toward the bottom of the sheet in Fig. 1, until the gripper is in the position shown at the bottom of the sheet, when the paper 0ccupies the position indicated by dotted lines in Fig.1. Subsequently and afterthe part of position shown in Fig. 5, carrying 'with them the ends of the severed sheet of paper which they wrap around the packageas indicated by dotted lines in- Fig. 5. Then the presser foot'descends and holds the ends of the paper in place on top of the package. hen the table is moved the trolley'18 runs along the rail 9 and thus the presser foot rep mains in action. The rod 20 of course not the paper or by entrained air.

only supports the sheet of paper, but also the corner of the package.

Sometimes a pile of books is not fiat because the books are not consolidated but are spaced apart-by reason of the resiliency of In order to consolidate the pile of books prior to the application of the Wrapping paper, use may be made of a squeezer, as shown consisting of the angularly disposed tines 5657, of afork 58 working in guides 59. The fork is raised and lowered .by a pivoted arm 60 to which it is connected and which is operated by a cam 61 on the shaft 28. The tines 56 and 57 operate to press the pile, and after i the paper is wrapped by the folders and held by the presser foot, the tines are raised so that the package, held by the presser-foot, can be withdrawn laterally from under the tines.

It will be obvious to those skilled in the art to which the invention relates that modifications may be made in details of both construction and arrangement without departing from the spirit of the invention hence the latter is not limited further than the prior state of the art and the appended claims may require.

What we claim is:

1. In a wrapping machine the combination of a horizontal table, a paper rollholder to one side of the table, scissors between the table and paper roll-holder and consisting of a pair of blades, an intermittent progressive paper feed arranged at one edge of the table and provided with paper grippers adapted to pass between the open scissor blades, a gripper release and an opposed paper wiping arm arranged at the other side of thetable, said arm pivoted to move in a plane parallel with the face of the table, paper folders at each side of the table, a gripper closer between the paper rollholder and scissors, and means for operating said parts. I

2. In a wrapping machine the combination of a horizontal table, a paper rollholder toone side of the table, scissors between the table and paper roll-holder and consisting of two cutting blades, an intermittent progressive paper feed arranged at one end edge of the table and provided with grippers adapted to pass between the open scissor blades, a gripper release at the other side of the table, a grip-per closer between the paper roll-holder and scissors, and means for operating the parts.

3. In a wrapping machine the combination of a'table, a paper roll-holder to one side of the table, scissors arranged between the table and paper roll-holder and consisting of two blades, an intermittent progressive paper feed arranged at one end edge of adapted to pass between the open scissors, a I

gripper release and an opposed paper wiping arm arranged at the other'side of the table, said arm pivoted to swing in a plane parallel with the face of the table, paper folders at each side of the table, a. gripper closer between the paper roll-holders and the scissors, and means for operating the parts.

4. In a wrapping machine the combination of a horizontal table, a paper rollholder to one side'of the table, scissors between the table and paper roll-holder and consisting of two blades, an intermittent progressive paper feed arranged at one end edge of the table and provided with paper grippers adapted to pass between the open tween the paper roll-holder and the scissors,

a presser foot above the table and between the folders, and means for operating the parts.

5. In a wrapping machine the combination of a horizontally movable table, a vertically slidable presser foot cooperating with the table, a horizontal rail extending in the direction of motion of the table and having sliding engagement with the presser foot whereby the foot may move with the table and along the rail, and cam mechanism for raising and lowering the rail.

6. In a wrapping machine the combination of a horizontal table, means at one edge of the table for feeding paper by one of its edges, a. paper wiper arm disposed at the other edge of the table and adapted to be positively turned in a plane parallel with the paper, and mechanism for operating away, paper feeding and wrapping mechanism cooperating with the table, and a fixed rod flush with the table and arranged at one side thereof adjacent the cut away corner thereof to support the load on the table.

8 In a wrapping machine the combinationof a table. a feed slide cooperating with the table. a fork adapted to straddle the slide, and grooved cam mechanism for operating the fork.

9. In awrapping machine the combination of scissors and consisting of two blades, paper grippers adapted to operate on one side edge of the paper and to pass between the open scissors, and means arranged in rear and in front of the scissors for actuating the grippers, substantially as described.

10. In a wrapping machine a table, paper Y I v I 1,175,908

prior to wrapping and thereafter freeing it,

folders, a, presser foot for holding the signed our names in the presence of Witwrapped paper, a squeezer consisting of nesses. tines between which the foo-t works and which is adapted for pressing the package MARTIN REHFUSS" JOHN GEORGE REHFUSS.

and means fqr :Qpe'rating said parts, subvitnesses: stantially as described. CLIFFORD K. "CAssEL,

.In hereof We have hereurito FRANK E. F NCH. 

